15. Central Dogma & Gene Regulation

What type of bonding is responsible for maintaining the shape of the tRNA molecule shown in the figure?

The tRNA shown in the figure has its 3′ end projecting beyond its 5′ end. Which of the following processes will occur at this 3′ end?

A ribosome has three tRNA binding sites. Which answer matches the tRNA binding site with the correct function:

Which of the following statements concerning ribosomes are true?

The direction of ribosome movement during translation is in the ______________.

Many antibiotics work by blocking the function of ribosomes. Therefore, these antibiotics will:

Use the genetic code table in the chapter and the DNA sequence below to answer the following questions:

3'-TACATAAAATAATGGCGTTCTATT-5'

a. What would the mRNA sequence be, based on the provided DNA sequence?

b. What would the corresponding polypeptide sequence be for this DNA sequence?

c. What tRNA anticodon loop would correspond to the third codon of the mRNA?

d. What would the mRNA and polypeptide sequences be if the second adenine in the DNA was deleted?

Polypeptide synthesis requires large amounts of energy. How do cells regulate synthesis to conserve energy? Describe one specific example.